CN206264590U - Printing machine - Google Patents
Printing machine Download PDFInfo
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- CN206264590U CN206264590U CN201621203633.3U CN201621203633U CN206264590U CN 206264590 U CN206264590 U CN 206264590U CN 201621203633 U CN201621203633 U CN 201621203633U CN 206264590 U CN206264590 U CN 206264590U
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- electrostatic
- roller
- flattening mechanism
- paper
- printing machine
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Abstract
The application is related to printing technology, more particularly to a kind of printing machine, it includes shell, roller and on-line detecting system, on-line detecting system includes electrostatic flattening mechanism and administration of power supply, roller and electrostatic flattening mechanism are mounted on the inside of shell, roller is grounded, and the discharge end of electrostatic flattening mechanism is positioned opposite with roller, and electrostatic flattening mechanism is electrically connected with administration of power supply.When carrying out on-line checking, administration of power supply is powered to electrostatic flattening mechanism so that form electric field between electrostatic flattening mechanism and roller.When paper enters in the electric field region, paper can be filled with electrostatic, be then close to from trend ground connection side, can thus make paper than more firmly adsorbing on the outer peripheral face of roller.It can be seen that, the electrostatic flattening mechanism only just can apply active force by its electric field for being formed without being contacted with paper to paper.So, the problems such as the electrostatic flattening mechanism will not cause scratch to paper, the printing quality of printed matter is improved with this.
Description
Technical field
The application is related to printing technology, more particularly to a kind of printing machine.
Background technology
With the development of printing machine examination industry, quality of the on-line detecting system realization to printing process is installed additional on the printer
On line real-time monitoring is the trend of machine examination industry development.It is to be imaged to be by line scan camera that printing machine installs on-line detecting system additional
System in real time to printing process in each printed matter carry out IMAQ, then by software analysis detect, image it is consistent
Property and stability are the keys of detecting system success or failure.Therefore to ensure every the uniformity and stability of IMAQ, paper is controlled
Open steady particularly important, i.e., the sheet spread technology being referred to as in industry during printing movement.
Press printing substantially process is that accurately be delivered in print couple sheet-fed printing paper by paper carrying portion.Gripper
Row bites paper head and hauls a paper greatly in printing machine internal motion, roller and impression cylinder of the print couple built with printing plate
Graph text information on printing plate is transferred on paper by extruding paper.On-line detecting system is in paper by the impressing rolling after printing
IMAQ is carried out on cylinder.What therefore sheet spread technology to be solved is stationarity of the paper on impression cylinder.
Sheet spread technology experienced development for many years, generally ensure paper in roller using mechanical scraper contact mode
It is steady on outer surface.Scraper-type flattens technology, is exactly to install scraper plate near inspection positions on roller, by controlling scraper plate
Spacing between roller carries out mechanical flattening to paper.Due to being mechanical contact flat manner, therefore paper can be caused
Certain damage, particularly paper are just printed, and ink also has certain humidity, and scratch etc. can be easily caused to printing paper
Hard defects.Therefore, this kind of sheet spread technology can cause the printing quality of printed matter poor.
Utility model content
This application provides a kind of printing machine, to improve the printing quality of printed matter.
The printing machine that the application is provided includes shell, roller and on-line detecting system, and the on-line detecting system includes quiet
Electric flattening mechanism and administration of power supply, the roller and the electrostatic flattening mechanism are mounted on the inside of the shell, the rolling
Cylinder ground connection, the discharge end of the electrostatic flattening mechanism is positioned opposite with the roller, and the electrostatic flattening mechanism and the confession
Motor structure is electrically connected.
Preferably, the discharge end of the electrostatic flattening mechanism and the paper delivery side of the roller are positioned opposite.
Preferably, the distance between the discharge end and outer peripheral face of the roller are less than higher limit.
Preferably, the distance between the discharge end and outer peripheral face of the roller are more than lower limit.
Preferably, the lower limit is 40mm.
Preferably, the electrostatic flattening mechanism includes spray point, the axis of the extension line of the spray point and the roller
It is intersecting.
Preferably, the extension line of the spray point is perpendicular with the outer peripheral face of the roller.
Preferably, in the projection for obtaining along the course of discharge of electrostatic flattening mechanism, the throwing of the printing format of the roller
Shadow face is located at the inside on the perspective plane of the effective picture size of the electrostatic flattening mechanism.
Preferably, in the projection for obtaining along the course of discharge of electrostatic flattening mechanism, the perspective plane edge of the effective picture size
Roller axial direction opposite sides width, than the printing format perspective plane along roller axial direction opposite sides it is wide
Degree is big.
Preferably, the electrostatic flattening mechanism includes multiple spray points, each spray point along the roller axial direction
Arrange successively.
The technical scheme that the application is provided can reach following beneficial effect：
Printing machine provided herein implements sheet spread operation using electrostatic flattening mechanism, when carrying out on-line checking,
Administration of power supply is powered to electrostatic flattening mechanism so that form electric field between electrostatic flattening mechanism and roller.When paper enters the electricity
When in field areas, paper can be filled with electrostatic, be then close to from trend ground connection side, and paper ratio can thus more firmly inhaled
It is attached on the outer peripheral face of roller.It can be seen that, the electrostatic flattening mechanism, only can by its electric field for being formed without being contacted with paper
Apply active force with to paper.So, the problems such as the electrostatic flattening mechanism will not cause scratch to paper, printed matter is improved with this
Printing quality.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited
Application.
Brief description of the drawings
The part-structure schematic diagram of the printing machine that Fig. 1 is provided by the embodiment of the present application；
In the printing machine that Fig. 2 is provided by the embodiment of the present application, the effect schematic diagram of discharge body and paper；
The structural representation of the discharge body in the printing machine that Fig. 3 is provided by the embodiment of the present application；
Fig. 4 is the side view of structure shown in Fig. 3；
Fig. 5 is the top view of structure shown in Fig. 4.
Reference：
10- rollers；
11- line scan cameras；
12- electrostatic flattening mechanisms；
120- housings；
121- discharge bodies；
122- spray points；
20- paper.
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the application
Example, and it is used to explain the principle of the application together with specification.
Specific embodiment
The application is described in further detail below by specific embodiment and with reference to accompanying drawing.
As Figure 1-5, the embodiment of the present application provides a kind of printing machine, and it includes shell, roller 10 and on-line checking
System, the on-line detecting system can be installed additional during later stage use, and it includes line scan camera 11, electrostatic flattening mechanism 12
With administration of power supply (not shown).Roller 10 and electrostatic flattening mechanism 12 are mounted on the inside of shell, and roller 10 is grounded.
Line scan camera 11 is used to gather by after transfer, the image information on paper 20.The discharge end of electrostatic flattening mechanism 12 and rolling
Cylinder 10 is positioned opposite, and electrostatic flattening mechanism 12 is electrically connected with administration of power supply.Administration of power supply can use charging box, be set in the charging box
It is equipped with electric organ.
Above-mentioned electrostatic flattening mechanism 12 can use existing structure, such as electrostatic rod.When carrying out on-line checking, administration of power supply
Powered to electrostatic flattening mechanism 12 so that electrostatic flattening mechanism 12 can discharge, because roller 10 is grounded, therefore electrostatic flattening machine
Electric field will be formed between structure 12 and roller 10.And paper 20 can be driven to move during the rotation of roller 10, when paper 20 enters the electric field
When in region, paper 20 can be filled with electrostatic, be then close to from trend ground connection side, can thus make the ratio of paper 20 more firmly
Absorption is on the outer peripheral face of roller 10.
From the foregoing, it will be observed that the printing machine that the embodiment of the present application is provided implements sheet spread operation using electrostatic flattening mechanism 12,
And the electrostatic flattening mechanism 12 only can just be acted on by its electric field for being formed without being contacted with paper 20 to the applying of paper 20
Power.So, the problems such as the electrostatic flattening mechanism 12 will not cause scratch to paper 20, the printing quality of printed matter is improved with this.
Usually, the opposite sides of roller 10 can be formed into paper side and paper delivery side, and paper 20 enters paper side from roller 10
Into by the paper delivery side output of roller 10 after the completion of transfer.Because this enters the distance between paper side and paper delivery side relatively closely, therefore will
What electrostatic flattening mechanism 12 was arranged at roller enters paper side position and paper delivery side position.But, due to online inspection
The target of survey is the paper 20 that transfer is completed, therefore enters paper side position still by what electrostatic flattening mechanism 12 was arranged at roller
The effect of sheet spread can be caused not ideal.Accordingly, electrostatic flattening mechanism 12 can be arranged at the paper delivery side institute of roller 10
In position.Specifically, the discharge end of electrostatic flattening mechanism 12 is positioned opposite with the paper delivery side of roller 10, and shortening electrostatic with this flattens
The distance between the discharge end of mechanism 12 and the paper delivery side of roller 10, improve the effect of sheet spread.
In order to ensure the effect of sheet spread, can to the outer peripheral face of the discharge end of electrostatic flattening mechanism 12 and roller 10 it
Between distance optimize so that the distance between outer peripheral face of the discharge end and roller 10 is less than higher limit.Discharge end and rolling
The distance between outer peripheral face of cylinder 10 refers to minimum range between the two.And higher limit herein can be according in printing machine
The factor such as installing space flexibly set.
The distance between the foregoing discharge end to electrostatic flattening mechanism 12 and outer peripheral face of roller 10 are optimized, be in order to
Ensure that the discharge end of electrostatic flattening mechanism 12 is closer with what the outer peripheral face of roller 10 was leaned on, therefore distance between the two is generally got over
It is small better.But, the distance is also required to more than lower limit, with the mistake that the discharge end of antistatic flattening mechanism 12 is moved in paper 20
Contacted with paper 20 in journey.In addition, this kind of set-up mode is it is also possible that the on-line detecting system can be applied to multi-thickness
Paper 20.
Alternatively, the various parameters of comprehensive printing press, in order to improve flattening effect, while preventing electrostatic flattening mechanism 12
Discharge end is too near to paper 20, and above-mentioned lower limit can be 40mm.
In a kind of embodiment, electrostatic flattening mechanism 12 may include housing 120, the discharge body 121 being fixed in the housing 120
And it is installed on the spray point 122 in discharge body 121, the design parameter of the discharge body 121 and spray point 122 can be according to reality
Demand is flexibly selected, and the extension line of spray point 122 can intersect with the axis of roller 10.Where the extension line of spray point 122
Direction i.e. the course of discharge of spray point 122, the extension line intersect with the axis of roller 10, also imply that spray point 122
Active force can act in the most surfaces of paper 20, also just can further improve the effect of sheet spread.
Further, the extension line of spray point 122 can be perpendicular with the outer peripheral face of roller 10.Being arranged such just can be with
So that the active force that spray point 122 is put on paper 20 is basically perpendicular to paper so that spray point 122 applies to paper 20
Useful effect power is bigger, this kind of to improve the effect that equally improve sheet spread.
It is to be appreciated that the outer peripheral face for being used to be engaged with another roller on roller 10 is properly termed as printing format.In order to
Improve sheet spread effect to a greater degree, can be set as follows：Obtained along the course of discharge of electrostatic flattening mechanism 12
In projection, the perspective plane of the printing format of roller 10 is located at the inside on the perspective plane of the effective picture size of electrostatic flattening mechanism 12.It is quiet
The effective picture size of electric flattening mechanism 12 refers to sending the breadth of electrostatic.Being arranged such can cause electrostatic flattening mechanism 12
Active area with paper is maximized, and then reaches foregoing advantages.
On the basis of above-mentioned technical proposal, following optimization can also be made：Along the course of discharge of electrostatic flattening mechanism 12
In the projection for obtaining, the perspective plane of foregoing effective picture size along the opposite sides of roller axial direction width, than foregoing printing width
The perspective plane in face is big along the width of the opposite sides of roller axial direction.Width herein is in the upward size of drum shaft.Namely
Say, in the opposite sides of roller 10, the width of effective picture size is both greater than the width of printing format so that electrostatic flattening mechanism 12 to
The active force that paper 20 applies is bigger, promotes sheet spread effect more significantly.Specifically, the width differential of foregoing both sides
Being 25mm.
It is previously mentioned, electrostatic flattening mechanism 12 may include housing 120, the discharge body 121 being fixed in the housing 120 and
It is installed on the spray point 122 in discharge body 121.In preferred embodiment, the spray point 122 may be configured as multiple, each spray point 122
Arranged successively along the axial direction of roller 10.Now, the length of the effective picture size of electrostatic flattening mechanism 12 is apart from farthest two
The distance between spray point 122.Due to roller 10 be cylindrical structure, so if the arragement direction of each spray point 122 relative to
Roller 10 it is axially inclined, then spray point 122 will produce the component in multiple directions to the electrostatic force that paper applies, and cause
The useful effect power of the output of spray point 122 is weakened.And after each spray point 122 is arranged successively along the axial direction of roller 10, so that it may
To reduce the component of above-mentioned electrostatic force, and then improve the useful effect power of the output of spray point 122.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of printing machine, it is characterised in that including shell, roller and on-line detecting system, the on-line detecting system includes
Electrostatic flattening mechanism and administration of power supply, the roller and the electrostatic flattening mechanism are mounted on the inside of the shell, described
Roller is grounded, and the discharge end of the electrostatic flattening mechanism is positioned opposite with the roller, and the electrostatic flattening mechanism with it is described
Administration of power supply is electrically connected.
2. printing machine according to claim 1, it is characterised in that the discharge end of the electrostatic flattening mechanism and the roller
Paper delivery side it is positioned opposite.
3. printing machine according to claim 2, it is characterised in that between the outer peripheral face of the discharge end and the roller
Distance is less than higher limit.
4. printing machine according to claim 2, it is characterised in that between the outer peripheral face of the discharge end and the roller
Distance is more than lower limit.
5. printing machine according to claim 4, it is characterised in that the lower limit is 40mm.
6. printing machine according to claim 1, it is characterised in that the electrostatic flattening mechanism includes spray point, described to put
The extension line of acusector intersects with the axis of the roller.
7. printing machine according to claim 6, it is characterised in that the periphery of the extension line of the spray point and the roller
Face is perpendicular.
8. printing machine according to claim 1, it is characterised in that along the throwing that the course of discharge of electrostatic flattening mechanism is obtained
In shadow, the perspective plane of the printing format of the roller is located at the inside on the perspective plane of the effective picture size of the electrostatic flattening mechanism.
9. printing machine according to claim 8, it is characterised in that along the throwing that the course of discharge of electrostatic flattening mechanism is obtained
In shadow, the perspective plane of the effective picture size along the opposite sides of roller axial direction width, than the projection of the printing format
Face is big along the width of the opposite sides of roller axial direction.
10. the printing machine according to any one of claim 1-9, it is characterised in that the electrostatic flattening mechanism includes many
Individual spray point, each spray point is arranged successively along the axial direction of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621203633.3U CN206264590U (en) | 2016-11-08 | 2016-11-08 | Printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621203633.3U CN206264590U (en) | 2016-11-08 | 2016-11-08 | Printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206264590U true CN206264590U (en) | 2017-06-20 |
Family
ID=59038031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621203633.3U Active CN206264590U (en) | 2016-11-08 | 2016-11-08 | Printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206264590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515215A (en) * | 2016-11-08 | 2017-03-22 | 北京华夏视科技术股份有限公司 | Printer |
-
2016
- 2016-11-08 CN CN201621203633.3U patent/CN206264590U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515215A (en) * | 2016-11-08 | 2017-03-22 | 北京华夏视科技术股份有限公司 | Printer |
| CN106515215B (en) * | 2016-11-08 | 2018-11-27 | 北京华夏视科技术股份有限公司 | Printing machine |
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